Aksys Gmbh

Baxter Healthcare Sa

Lori A Plummer

Rodney S Kenley

Dennis M Treu

Shawn O Barrett

Dawn Matthews

William C Cesaroni

Jack B Hough

Wayne F Adolf

Douglas L Wilkerson

Frederick H Peter, Jr

Tom L Brose

Anthony M Anello

Thomas M Feldsien

Michael Edward Wiklund

Steven J Wroblewski

Andrew Gebhardt

Joel DeJesus

William R Dolan

Michael D Peters

Russel L Sage

Russell L Sage

A user interface for a medical instrument such as a dialysis machine is described which uses both a touch screen and at least one hard key off of the touch screen to effectuate a change in a parameter associated with the operation of the machine or the treatment session. The user interface is connected to a central computer control system having a host microprocessor and a backup safety microprocessor. The hard key is directly wired to the safety microprocessor. After the user selects a new parametric value on the touch screen, the user presses a hard key. The host and safety microprocessors implement a verification routine to insure that the entered parameter is appropriate for the patient's treatment and the display on the touch screen. If the verification procedure ends in a positive result, the user is prompted to presses a second hard key to confirm the change, causing an additional verification check to be preformed. If the additional verification check is successful, the parametric value is entered into a memory (such as a hard disk) storing instructions for operation of the medical instrument.

User interface and method for control of medical instruments, such as

A user interface for a medical instrument such as a dialysis machine is described which uses both a touch screen and at least one hard key off of the touch screen to effectuate a change in a parameter associated with the operation of the machine or the treatment session. The user interface is connected to a central computer control system having a host microprocessor and a backup safety microprocessor. The hard key is directly wired to the safety microprocessor. After the user selects a new parametric value on the touch screen, the user presses a hard key. The host and safety microprocessors implement a verification routine to insure that the entered parameter is appropriate for the patient's treatment and the display on the touch screen. If the verification procedure ends in a positive result, the user is prompted to presses a second hard key to confirm the change, causing an additional verification check to be performed. If the additional verification check is successful, the parametric value is entered into a memory (such as a hard disk) storing instructions for operation of the medical instrument.

Dialysis machine

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Spring Grove, IL, United States of America

Lori A Plummer